larsberg

void exportFbo(ofFbo& _fbo)
{
	auto path = ofSystemSaveDialog("fbo.png", "save as");
	ofShortPixels pixels;
	_fbo.readToPixels(pixels);
	ofSaveImage(pixels, path.getPath());
}

larsberg

//closest point on line
//http://paulbourke.net/geometry/pointlineplane/
ofVec3f closestPointOnLine(ofVec3f p, ofVec3f l0, ofVec3f l1 )
{
	if(l0 == l1)	return ofVec3f();
		
	float u = (((p.x-l0.x) * (l1.x-l0.x)) + ((p.y-l0.y) * (l1.y-l0.y)) + ((p.z-l0.z) * (l1.z-l0.z))) / l1.distanceSquared( l0 );
	
	if( u < 0.0f )
		return l0;